Sharp PC-1403 - Page 55

4 9
Key Fun c t i on
n
G
n - X -> X : Perf o r m s t he subt r acti on of m at ri x X e l ements from
sc a l ar n.
I n this operatio n , each ele m e n t o f matrix X i s subtrac te d f ro m n
an d the re s ult beco m es t he cor r es p o nd i ng ele m e n ts of ne w
matrix X .
N OTE : M athemat i ca ll y , s u c h an o pe rat ion as t hi s d oes not
e xist. The s ubt r a c tio n of scala r s i s an ot h er f eat u r e un i -
q ue to th e COMPUT E R .
( E xample )
2 -[ :
:1 ]- [ ~1
- : J
n 00 n · X __, X : P e rf orm s the mult i p li c at i on of ma t r i x x elements by
sca l ar n .
n rn
n · x - 1 -+ X : Perf o r ms th e m u ltipl i cat i on of i nverse matrix x- 1
e l e men t s b y sc al a r n .
To perform thi s operation, ma t r ix X m us t be a squar e matr i x.
rn X ~ Y : Exc h ang e ma trix X fo r ma t rix Y .
[TI
X 1 __, X : Pe rform s t h e t r ansposit i on of m a tri x X,
g i v i ng t he
tr a n s posed matr i x a s new matri x X .
[ID
I X I -> X ( Dis p l ay) : D i sp l a y s th e v a l ue o f th e determinant of
m a tr ix X .
To perfo r m t h is ope r ation , matr ix X m ust be a squar e matrix .
El
- X -> X :
Re ve rs e s t he p o si t i v e o r n ega t i v e s i gn o f each e lement
o f ma t r i x X.
l.PJ
X · X _, X : Pe rf o rm t h e s q u ar i ng of ma t ri x X .
T o p e rfo r m thi s op e r at i on , matr i x X must be a squa re matrix .
8
X -> M : Stor e s t he v a l ue o f ma t rix X in the me mory lo c ation of
m atri x M ( wh i l e cl ear in g t he pre v ious content s of m a tri x
M ) .
T h is k e y i s u se d whe n y o u w i sh to ret a in the v alue o f matrix X
e v en a ft er th e m at r i x c a l c ul a ti on .
U s ing as a Calcul a tor